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CNC machining in everyday life

Machine Tools Safeguard the Standard of Living

Aerospace

Retrofi t with Sinumerik 840D slComplete Machining

Proven solution for complex parts machining: Sinumerik Operate

mot ionworld

The Magazine for CNC Automation

Volume 11 1/2012

2 motion world | 1-2012

C o n t e n t s m o t i o n w o r l d | 1 - 2 0 1 2

BMW

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Gewinde Ziegler manufactures fl exible, high-quality spindle shafts with Sinumerik 840D sl

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Sinumerik-controlled sliding head lathes realize customized production of dental implants

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BMW AG Motorrad is renowned for using the newest technology – this also holds true for machining

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p Cover

Solutions for the Consumer Market 4 What if …

CNC machining in everyday life

p Industry

Automotive 7 Precision Processing

for Fast BikesBMW AG Motorrad, Germany

Medical Part Manufacturing 10 Highly precise and cost-effective

Medizin- und Dentaltechnik, Germany

Energy Production 12 Well Connected

Gisma Steckverbinder GmbH, Germany

Aeronautical Engineering 14 Better than New

Lufthansa Technik AG, Germany

p Technology

Complete Machining 16 Simultaneous Machining

Chiron-Werke, Germany

Turning 18 Standardized Interface

Promotes FlexibilityGewinde Ziegler AG /GSA AG, Switzerland

Partnership with Siemens 22 Process Monitoring for

the Sinumerik 828DSinumerik Solution Partner

p Service

Manufacturing Excellence 20 Optimizing Plant Availability

Life Cycle Services

23 Dialogue, Imprint

The customer in focus

E d i t o r i a l

CNC machines give birth to most of the products that surround us in our

everyday lives. Without them, there would be no cars, cutlery, glasses,

mobile phones or even aircraft, to name just a few examples. Machine tools

play an integral part in the manufacture of all kinds of products. That’s

why Siemens focuses not only on supporting the companies that make

these machine tools, but also on the consumers in the various industries,

as well. This focus is important for us as experts in automation because

every innovation that finds its way into a consumer product influences

the manufacturing of that product, and, therefore, the demands placed on

the machine tools and their environment.

Our employees require extensive expertise in order to offer customers

the best solutions in areas such as control systems, energy effi ciency,

standardization, virtual production, networking and after-sales support.

But that’s not all. They also need to understand the processes used by

our customers, so that they can help these customers achieve the most

important goal of all – increased productivity at a reduced cost.

At METAV 2012, we will present solutions and trends that cover every

aspect of metal cutting for consumer products. Every industry has its own

specific requirements, whether it is a highly specialized area like the

automotive, aerospace, energy generation, medical, or consumer goods

industries, or the broader mass market. This issue of motion world shows

that Sinumerik CNCs can be used effectively in every manufacturing

industry – from the major players right down to individual shopfl oors.

Find out more about the challenges for the consumer market, and our

solutions to those challenges – in this magazine and at Booth C44 in

Hall 13 at METAV 2012 in Düsseldorf.

We look forward to seeing you there!

Sascha FischerVice President

Business Development

End Customer

Machine Tools

Siem

ens

AG

motion world | 1-2012 3


C o v e r S o l u t i o n s f o r t h e c o n s u m e r m a r k e t

p CNC machining in everyday life

What if …What would our lives be like if we were forced to do without many of the everyday

objects we have come to take for granted? Things like sunglasses, mobile phones and

automobiles – none of which would exist today without machine tools.y

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Sunglasses, a mobile phone case or car keys – what if the machine tool had never been invented? Perhaps we would have found

some other way of achieving the levels of conve-nience we are used to today. However, it seems more likely that, in terms of function and form, things would have remained as basic as they were in the time of our forefathers. Because it takes more than just the clever ideas of inventors to satisfy our consumer desires. Very few people are aware that tools and machine tools are used in some way or another in the manufacture of virtually all consumer products.

The mother of all machines delivers daily convenienceThere are good reasons why the machine tool is often referred to as the “mother of all machines.” For one thing, these machines are used to make plastics molds of all different designs, including the sunglasses and mobile phone cases mentioned above, toothbrushes, the countless parts used in domestic appliances and furniture, and, of course, components for our vehicles and airplanes. They also play a signifi cant role in the production of bodywork panels, engines, and transmissions for cars; aircraft engines; and the turbines used in energy genera-tion. The demands placed on the machines are high: they must be capable of milling, turning, boring, grinding, and lasering to within a hundredth of a millimeter, so that we can drive around in our safe, stylish cars and travel abroad in ever more comfort-able airplanes. The use of CNC machines is not restricted to the manufacture of very large compo-nents, however; these machines are also essential in the production of very tiny metal objects as well. The technology is particularly in demand when it comes to making very delicate components – medi-cal screws, joints, dental crowns, implants, and spe-cialized tools – items that are diffi cult to process and that must fi t precisely when fi nished. With its Sinumerik CNC systems and related programs, Siemens has the perfect solution for every application already.

Automotive components require productivity and qualityIncreasingly frequent model changes and global competitive pressures make it essential that the automotive industry produce cars as cost-effectively as possible.

Whether manufacturing molds for bodywork panels or the wide range of parts required for the inner workings of a car – transmission rods, engine blocks, wheel hubs, and so on – machines must be able to operate at high speeds and switch quickly

from task to task. In this regard, the Sinumerik 840D sl is the fi rst choice, with a wide range of functions to save setup time and a seamless pro-cess chain from CAD/CAM to production ensuring that productivity and quality remain high.

High levels of effi ciency in aerospace engineeringIt is not just the components and systems that are large in the aerospace industry – the sums involved are huge, too. Operating efficiently in these eco-nomic times requires that every process be opti-mized to the very last detail. The latest Sinumerik CNC systems offer a wide range of options to help: new machine tools can be set up precisely from the very fi rst step of the planning or construction process, existing processes can achieve greater processing speeds through upgrades to the control system, and trusted old “veteran” machines with 20 years’ service or more can be returned to profitability through control retrofits.

Machine tools and control

systems must be set up

precisely for the large

components required

in the aviation and

aerospace industries

Automotive

components require

CNC machines with

high levels of

productivity and

quality

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Siem

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Medical implants that meet the highest quality standards

The increased longevity among the populations of industrialized nations means that medical products are rapidly gaining in importance. The manufactur-ing of hip and knee joints, spinal components, shoulder and elbow joints and even dental implants has become one of the most significant fields of medical technology. To make implants affordable for as many people as possible, the cost implications must be taken into consideration during the manu-facturing process itself. This can be achieved using the Sinumerik 840D sl, which has been optimized for high-speed cutting (HSC) in the five-axis range, and can quickly and accurately process materials like cobalt-chrome or titanium, which are known to be difficult to machine. The Sinumerik MDynamics tech-nology package with its Advanced Surface intelligent path control function for all Sinumerik CNCs ensures high-quality surface finishes that are as smooth as glass. The “Image to Implant” collaboration project is working towards making cost-effective series pro-duction of individual implants a reality.

Precision workmanship of turbine componentsThe turbines used in steam, gas, and hydroelectric power plants must be able to withstand enormous forces in their daily use. For the manufacture of tur-bine components, the various machining technolo-gies require precise and high-performance automa-tion, drive and monitoring technologies. As such, the production of heavily-stressed workpieces is

characterized by high cutting volume. First and fore-most, five-axis machining requires a maximum cut-ting capacity that can only be achieved with highly efficient HSC machines. The objectives are: Maxi-mum precision, surface quality and machining speed. In this respect, in addition to five-axis milling, the Sinumerik 840D sl also supports complete machining on one machine.

Highly flexible in the manufacturing of consumer products

Parts intended for the consumer market must be manufactured to the highest standards of accuracy – regardless of whether they are small parts like watches, jewelry and electronic components, or molds for items such as sunglasses, mobile phones and other everyday objects. The machines must also be extremely flexible, so that they can be adapted quickly to meet different requirements. Here is where turn-mill machines equipped with Sinumerik CNC really come into play, and leaving a lasting impression with their excellent surface finishes and true running characteristics, not to mention their ability to switch quickly between small batch and volume production.

Overcoming current challengesAs illustrated by these examples, the main chal-lenges for the effective use of machine tools lie in meeting industry and material-specific requirements and supporting process optimization – for example, by reducing changeover times through simultaneous processing of both turning and milling. This also presents a highly complex challenge to the control system, which cannot allow accuracy to be compro-mised even when operating at top speed. As long-time market leaders, Sinumerik CNC systems have played a significant role in shaping recent develop-ments in machine tool design. Time and time again, innovations have made it possible to further optimize construction and application processes. Sinumerik engineers, with years of industry experi-ence behind them, are now working to ensure that this remains the case in the future, collaborating with machine builders and end-users so that con-sumers can continue to enjoy familiar products for years to come. p

C o v e r S o l u t i o n s f o r t h e c o n s u m e r m a r k e t

infocontact

www.siemens.com/sinumerik [email protected]

The production of

turbine components

requires reliable

automation

Sinumerik MDynamics

is perfect for achieving

perfectly smooth

surface finishes on

implants

Siem

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W. G

eyer


BMW

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I n d u s t r y A u t o m o t i v e

Sinumerik 840D controllers, which are used in the manufacture of cylinder heads for fl at and 4-cylin-der engines. Prices are obtained from suppliers at regular intervals, especially when the company is investing in new machining centers. The aim is to ensure that BMW can manufacture its components more cost-effectively than external contractors, while at the same time comparing the prices offered by the various machine suppliers.

p BMW AG Motorrad, Germany

BMW motorcycles enjoy an outstanding repu-tation around the world for their reliability, quality, performance and safety. This is not

achieved by chance, however. BMW’s motorcycle plant in Berlin uses around 50 machine tools to cre-ate numerous key components on-site, from frames and valve shafts to connecting rods and cylinder heads. Among these tools are Grob’s horizontal five-axis G550 machining centers equipped with

To guarantee perfect workmanship and the highest possible product quality, BMW

uses fi ve-axis machining centers equipped with Sinumerik 840D sl and a range of

new user interfaces for machining operations in its Berlin motorcycle plant.g p y p

Precision Processing for Fast Bikes


One of the major rea-sons for choosing the G550 was because it was equipped with a Siemens CNC. Thanks to previous positive ex-pe rience with Siemens, the BMW manufactur-ing specialists in Berlin already employ technol-ogy from Europe’s mar-ket leader for 90 per-cent of their controllers. This allows both opera-tors and tool setters the flexibility to work onalmost all the machines in the plant. Other key requirements noted in the specification were ade-quate space for manufacturing all relevant compo-nents, the highest levels of precision and surface fi nish, compliance with pre-defi ned cycle times, and the ability to reuse all current tools and equipment.

The highest levels of precision on even the hardest materialsBefore committing to the new investment, the responsible BMW production engineer worked with a colleague from process engineering to investigate the effectiveness of the Grob machines in cylinder head production. Initially, it was the G550’s near-identical sibling, the G350, that was under consider-ation. As a fi rst traditional single-workplace machine

tool, it already met almost all the main criteria, but the space available inside was deemed too small to accommodate all the required processing tasks. However, the G550 satisfi ed this requirement as well. Among other factors, the horizontal design of this five-axis ma-chine, which has both rotary axes in the work area, contributes sig-

nifi cantly to its outstanding rigidity. As a result, axial deviation remains process-compliant at values under 10 µm. The level of precision that can be achieved is correspondingly high, even when processing extremely hard materials, as with valve seat inserts, for example.

The machine also produces a high-quality surface fi n-ish, with roughness (Rz) of up to 2 µm. Christian Heiß, applications engineer at Grob, explains a further bene-fi t of the horizontal design: “Tool life can be increased by approximately 30 percent compared with that of vertical machining centers. And the problem of jammed slivers is almost completely eliminated because they are not able to fall onto the workpiece in the fi rst place, but instead fall right through to the ground.”

I n d u s t r y A u t o m o t i v e

» Previously, it might have

taken several hours to

set up the machine and the

workpiece, now it can be

done in just a few minutes. «Christian Heiß, Applications Engineer, Grob

Gro

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BMW

AG

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The horizontal design of the Grob fi ve-axis G550 guarantees the highest levels of rigidity, which keeps axial deviations below 10 µm

Highly trained employees and specialist suppliers help BMW motorcycles maintain their excellent reputation for reliability, quality, and safety


infocontact

www.siemens.com/[email protected]

One of the G550’s strengths is its compact size, at only 3800 mm x 6300 mm. However, despite its size, it still features an extremely long z-axis stroke of 1020 mm, meaning that tools up to 500 mm long can be retracted completely out of the work area and into the so-called spindle tunnel. The swivel-mounted shuttle table is another feature that helps deliver high levels of productivity. While one work-piece is being processed, the next can be clamped and set, thus minimizing costly downtime.

Programmed and set in no time at allEmployees fi nd the new Sinumerik 840D sl CNC especially easy to operate because, in the production of BMW cylinder heads, only Siemens controllers are used. Despite this, the user interface presented on the Grob machines looks completely different from the others. Until now, operators and setters have been used to the DIN-based HMI Advanced user interface, but the new CNC on the G550 features the Sinumerik Operate animated graphical display. Siemens has integrated a new operation and pro-gramming structure, with practical functions such as copy and paste that are well known to users from their daily use of PCs. This allowed BMW employees to quickly adapt and master the new Sinumerik user interface in no time at all.

Thanks to its excellent usability and intuitive opera-tion through various technology cycles, measure-ment cycles, and setting functionality, the new G550 machines can be set up for new batches much more quickly than before. As Heiß explains: “This means our customers are much faster than before. Previ-ously, it might have taken several hours to set up the machine and the workpiece, now it can be done in just a few minutes.”

Quick and reliable with remote maintenanceAlong with the tools and equipment from the cur-rent machines, the German motorcycle manufac-turer was able to reuse all its existing programs as well. It took a single employee only two days to upgrade these programs to be compatible with the latest software, which can be loaded onto the rele-vant machine as required either over the network or from a USB stick. The modern Windows Explorer-style program manager means that complex pro-grams can be managed either on the CF (Compact Flash) card or directly on the CNC.

If problems arise while the machine is operational, BMW production engineer Taner Ögretmen and his colleagues use the network-based remote mainte-nance functionality provided by Grob. This has rarely

been required so far – but when it has, it proved to be extremely smooth and effi cient, stresses Ögretmen. Grob can also perform minor optimizations together with Siemens using the teleservice. This is usually done automatically and without any disruption to ongoing production.

The Sinumerik-controlled Grob machines have met every expectation in full, which is why BMW has already ordered an additional four G550s. p

P r o g r a m m i n g a n d o p e r a t i o n u s i n g S i n u m e r i k O p e r a t e

Sinumerik Operate provides several different programming methods to let users program and set the workpieces: ShopMill graphical user interface, programGUIDE for G-code with cycle support, and pure DIN/ISO programming. If the user decides to use ShopMill, he or she receives an animated graphical work-step programming environment for simple dialog programming. The interface is designed to be clear and self-explanatory, so that even operators with no programming experience can learn the basics in no time at all. To write programs in programGUIDE, the operator will need some knowledge of G-code. The highlights here include new cycle support functionality and animated elements that can be used to represent the cycle graphically. Tooltip support is also provided.

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I n d u s t r y M e d i c a l P a r t M a n u f a c t u r i n g

Medizin- und Dentaltechnik, based in Villin-gen-Schwenningen, Germany, manufac-tures screws and other turned parts from

high-quality materials such as titanium, molybde-num and tantalum. The range of parts produced by the company’s 25 employees can be divided into three categories: bone screws with diameters any-where between 1 and 10 mm, standard screws made mainly of titanium with thread sizes of between M1 and M8 and dental implants. In the case of dental implants, the company develops complete implant systems, including tools and accessories, and ma nu-factures these on a per customer basis. A single group of products might contain up to 66 different implants of differing shapes and sizes. Overall, the company produces around 150,000 implants each year for approximately a dozen different manufac-turers. The company’s specialty is its fl exibility. The manageable size of the team and close collaboration within the company mean that special requests from dentists can be implemented quickly and easily, with no unnecessary bureaucracy. Its newest product is a tiny dental implant, just 3 mm x 6 mm, based on an idea from a dentist.

For the production of these parts, the company’s machine shop already features a total of 25 sliding head turning machines fi tted with driven tools. More than a third of these – the newer Hanwha XD20H type machines – have already been equipped with modern Sinumerik controllers. Volker Schulz, man-aging director of Medizin- und Dentaltechnik, was initially skeptical about the switch: “Our staff was

p Medizin- und Dentaltechnik, Germany

Highly Precise and Cost-Effective

The decision to invest in high-performance

machinery equipped with Sinumerik CNCs

has enabled Medizin- und Dentaltechnik

to become a highly fl exible company

capable of responding quickly to customer

requirements.

Medizin- und Dentaltechnik

specializes in custom-made dental implants

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Sin

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infocontact

www.siemens.com/sinumeriksabine.fi [email protected]

used to the previous controllers, which is why I was worried that it would require a lot of extra work to get to know the new devices.” However, thanks to the Sinumerik CNC’s intuitive user interface, the switchover went extremely smoothly. “We were sur-prised at how easy the new controllers are to use. The entire staff was able to quickly get up to speed,” says Schulz.

Simultaneous processing of several tools on both spindlesThe implant specialists have set up their machines to enable just-in-time production. In doing so, the col-laboration with machine supplier EB Turn-Key from Tüttingen has proven its worth. They also provided the automatic turning machines made by the Korean machine builder Hanwha. The main spindle on these machines turns at 10,000 rpm, while the counter spindle reaches 8,000 rpm. The Sinumerik CNC allows simultaneous processing of multiple tools on both spindles, with two channels used to control up to seven axes. “The Sinumerik control provides a very convenient set of standard features, which meant there was really no alternative for the applica-tions running here,” explains Markus Efi nger, man-

aging director of EB Turn-Key GmbH. “We didn’t need to activate or add any individual cycles,” continues Peter Schütz, a production foreman at Medizin- und Dentaltechnik. All of the required information was directly available using the Sinumerik’s standard cycles. Users were also impressed by the high level of computing power offered by the CNC: “We are now around a third faster in the production of many dental implants,” explains Schütz. During the fi rst quarter of 2012, the company plans to expand its manufacturing environment to include an additional machine equipped with Sinumerik 840D sl.

Programming directly on the machineModern shopfl oor equipment offers signifi cant ben-efi ts when it comes to new product development. Initial programming and any subsequent program changes that are required can be implemented quickly and effi ciently. At Medizin- und Dentaltech-nik, programming is carried out on the Sinumerik-controlled sliding head lathe itself. Simple program management functions and easy access to standard cycles mean that even complex contours can be pro-grammed without problems. Schütz was particularly impressed by the Sinumerik CNC’s performance in the production of chain threads (several different threads following on from each other on a single part): “This thread takes a really long time to pro-gram on other controllers. Using the thread cycle on the Sinumerik CNC, we were able to complete the programming in five minutes, and the final result was exactly what we wanted.” After all, even the most complex parts used in medical applications have to meet the highest possible standards. p

The company has its own clean room where implants are sterilized,

packed and labeled

I m a g e t o I m p l a n t

Siemens will introduce its new “Image to Implant” concept for the very first time at METAV 2012 in Düsseldorf. “Image to Implant” takes a CT scan of a knee joint and uses a highly automated process to develop and manufacture a patient-specifi c knee replacement prosthetic. The process makes it so easy to manufacture customized implants that these are now seen as a real alternative to standard prosthetics.


p Gisma Steckverbinder GmbH, Germany

Well-Connected

Special connectors are required to safely and reliably connect electrical and fi ber-optic cables deep underwater. With maintenance

more diffi cult, all of the parts must meet the most rigorous technical requirements in terms of relia-bility and service life. Products from Neumünster, Germany-based Gisma Steckverbinder GmbH are designed to be fail-safe and to withstand maximum pressure loads while still operating on the basic “push and pull” principle. In addition to shipyards, the offshore oil and gas industry, and the military, Gisma is now receiving an increasing number of orders from offshore energy companies. Gisma

Gisma specializes in the production of underwater connectors

typically used in offshore energy generation. Sinumerik-controlled

Spinner CNC machine tools contribute signifi cantly to the success

of the company.

works closely with its customers on all of its devel-opments – most recently on a single-pole, wet-mateable power connector for use in offshore underwater turbines, which was designed to handle operating voltages of 12 kV at 400 A and is guaran-teed to be fail-safe for 25 years.

Manufacturing repeatability to the nearest micronTo meet the high standards required in underwater technology, manufacturing accuracy to the nearest micron is required, especially for fi ber-optic connec-tors. In addition, the materials must all be corrosion-

A variety of complex connector casings are manufactured using the Sinumerik-controlled Spinner TC77 lathe

I n d u s t r y E n e r g y P r o d u c t i o n

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resistant. The highest levels of functional safety are also required to enable the machining of sea-water-resistant bronze and stainless steels, along with more sophisticated materials such as duplex and super-duplex steels, titanium and high-perfor-mance plastics. The demands placed on the cutting machines and controllers used in the production of these parts are correspondingly high. For many years, Gisma has relied on Spinner milling and turn-ing centers equipped with Sinumerik CNCs. “The machines rarely fail, not least because of the high-quality drive and control technology,” says produc-tion manager Michael Königsmann. He is particularly impressed by the TC77 universal turning machine from the 800 series, which will be used, among

other things, to turn the casings for a new high-performance connector measuring up to 3000 mm long. The TC 77 is built on a rigid Meehanite cast iron base with large tempered steel guide rails, allowing a high cutting capacity, along with good damping and rigidity characteristics. It is equipped with a water-cooled motor spindle, which allows precision turning to within a few hundredths of a millimeter shortly after switching on. The machine also has a counter spindle and features 12 tool sta-tions with driven tools. “This lets us manufacture some workpieces in a single run, whereas previously it would have taken several,” explains the production manager. In accordance with VDI/DGQ 3441, the machine achieves repeat accuracy of 2 µm in the x- and z-axes.

Consistent CNC strategy since 2000The sophisticated Sinumerik 840D sl CNC plays an equally important role in reducing manufacturing time. Since the year 2000, Gisma has used only Siemens controllers in its production facility. “By standardizing the controller, we have created an environment where we can deploy our employees fl exibly all over the shopfl oor and operator error

has become a thing of the past,” explains Tobias Frerck, Gisma’s managing director. “We have always had great results with Sinumerik controllers and knew we could rely on our competent regional ser-vice partners on those rare occasions when some-thing went wrong.” For newly-developed products, production manager Königsmann and his staff usu-ally create the CNC programs on external PCs in DIN ISO and then send them over the network to the most suitable machine. If there is a need to manu-facture new connectors based upon an existing fam-ily of parts, the required CNC programs can usually be adjusted directly on the machine itself. And, just as during initial setup, the Sinumerik 840D sl’s fully integrated and user-friendly ShopTurn software

comes into its own here. The animated graphical user interface is completely intuitive, meaning that it can be easily picked up even by temporary staff. The Sinumerik Safety Integrated software package provides additional safety when working in setup mode, allowing operators to monitor the production process with the machine door open. Safety mode allows speeds of up to 2 m/min, and the software ensures that the drives stop quickly after a maximum of 1 to 2 mm should any problems arise. If anything is unclear when an operator is entering data, he or she can push a single button on the operator con-sole to bring up a help menu. Switching to a text-based DIN interface is just as straightforward (for example, when an experienced programmer feels that he or she can more quickly and easily describe a complex contour using a DIN statement). As always, the main focus remains on achieving the highest possible standards in terms of both the manufactur-ing and the fi nished product. p

» We have always had good experiences with

Sinumerik controllers and knew we could rely on

our competent regional service partners on those

rare occasions when something went wrong. «Tobias Frerck, Managing Director, Gisma


I n d u s t r y A e r o n a u t i c a l E n g i n e e r i n g

For many people, the name “Lufthansa” is a byword for safe, comfortable air travel. The Lufthansa Technik group of companies

(LHT Group), which carries out aircraft servicing and maintenance, plays a signifi cant role in main-taining that reputation. Lufthansa Technik is one of the few service companies allowed to overhaul aircraft and engines from a wide variety of manu-facturers. Indeed, for certain procedures and manufacturers, the Lufthansa Technik site in Hamburg, Germany, is the only qualified repair location in the world.

Sophisticated engine repairsRepairs to engine housings represent a particularly diffi cult challenge. Engine housings are complex, heavily stressed components made of materials that are expensive to buy and process. In sched-uled maintenance, it is sometimes possible to replace only those sections that show signs of mechanical and thermal stress – an alternative that is technically challenging, but fi nancially, extremely interesting compared with using new parts. To do this, the component to be overhauled is fi rst precisely measured and a CAD model of its actual shape is created. Next, the worn sections from the engine components are replaced with new material, which is then reworked so that it exactly matches the previous structure in terms of shape, size, and accuracy of fi t. The repair tech-nology requires machining centers of a particular size and quality, as Andreas Tölle, project engineer at Lufthansa Technik in Hamburg, explains: “Our large vertical turning and grinding machines from Jungenthal, with their solid and reliable mechan-ics, are completely indispensable for this type of work.” They are regularly overhauled to refl ect the state-of-the-art in terms of both electrical engi-neering and CNC technology.

Engine components exposed to high thermal and mechanical loads must be overhauled after a predefi ned number of takeoffs and landings or a set number of fl ying hours Ph

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p Lufthansa Technik AG, Germany

Better than NewRetrofi tting a machine used to repair engine housings and

combustion chambers with a Sinumerik 840D sl CNC helped

signifi cantly improve its day-to-day performance.


infocontact


New technology simplifi es programming

Lufthansa Technik in Hamburg recently turned to Siemens to retrofi t the drive technology and control system on its Jungenthal vertical turning and grind-ing machine center. “Everything we produce is a one-off and needs to be individually programmed and processed,” says Tölle. “Our staff also needs to be able to operate all of the machines easily. That’s why we are gradually converting all our machining centers to use CNCs with shopfl oor software from Siemens.”

The electrical engineering part of the retrofi t in-cluded all of the axle drives and the CNC system. The Sinumerik 840D sl, with its Sinumerik Operate graphical user interface and integrated ShopTurn shopfl oor software, made it possible to combine the turning and grinding processes that previously required two CNCs into a single control system, thus saving one control panel. This means that there is now more space around the machine and users can move around freely as they operate the grinding functions from an MP8 mobile panel. With the turn-ing and grinding processes now combined in a single control system, programming and program manage-ment have been considerably simplifi ed. The old CL800 cycles have been translated one-to-one into ISO cycles for the new control system. On the OP 015 control panel, more information can be visualized in a clear and transparent manner than ever before. For example, it is now already obvious during the simulation phase whether a tool can be used at a particular angle of attack. In ShopTurn, which is also integrated into Sinumerik Operate, contour sections can be easily cut out and inserted usingthe copy-and-paste function. The panel is also extremely useful when operating in manual mode.

Retrofi tting saves time and moneyTo fully exploit the capabilities of the Sinumerik tool management system, Lufthansa Technik retrofi tted the tool turret with Capto toolholders. This allows the Jungenthal machine to be specifi cally fi tted with ready-made tools, simplifying in-process tool changes, eliminating the need for time-consuming scratching, and allowing entire production sequences to be

combined into cycles and programmed processes. “More effi cient tool and program management has increased our processing speeds on average by between 10 and 20 percent,” explains Tölle. Equipped with the new Sinumerik CNC, Simotics S-1FK7 servomotors and the Sinamics S120 drive system, including actively regulated infeed, the Jungenthal machine now has the flexibility to deliver the effi cient production processes required for aircraft maintenance. The retrofi t proved partic-ularly economical when compared to the cost of buying a new machine, even without counting the work saved on foundations and infrastructure. This resilient machine will probably also last longer than a newer model built today, says Tölle, who is already thinking ahead to the next retrofi t with Siemens as its partner. p

» When repairing an engine,

we have only one opportunity –

and there can’t be any waste.

The Sinumerik solution

developed together with

Siemens guarantees the

required process reliability. «Andreas Tölle, Project Engineer, Lufthansa Technik, Hamburg


T e c h n o l o g y C o m p l e t e M a c h i n i n g

p Chiron-Werke, Germany

Simultaneous Machining

The new FZ08 MT (“Mill Turn”) machining center from Chiron integrates the most sophisticated turning and milling operations.

The world’s leading producer of vertical machining centers has also optimized the thermal stability of this proven machine design, increased its modular-ization and expanded it to include a full-fl edged Sauter/Capto C4 turret. The swivel head, rotating spindle, turret (with centric clamping vise) and coun-ter spindle or swivel table(s) offer a total of up to 12 axes when fully equipped, allowing the user com-plete freedom when carrying out six-sided complete machining of highly complex workpieces. The ability to use two tools simultaneously on both spindles should allow processing times to be cut by half and therefore double productivity. The automated mate-rial feed (42 mm or 65 mm diameter bars) and the automatic unloading of fi nished parts make this an extremely productive manufacturing system that meets the highest possible quality standards. This machine tool builder is aiming at users not only in medical part manufacturing, clock and watch-makers, and jewelry manufacturers, too, but also at those in the automotive and general mechanical engineering industries, where complete machining is becoming more and more important.

Chiron has developed its new machining center specifi cally to handle the

complete machining of highly complex workpieces, and the company is

using Sinumerik Operate to make the most of the increased capabilities.

The very latest CNC and drive technology

The Sinumerik 840D sl, together with direct drives and spindles from Siemens (Weiss), forms an inte-gral part of this new generation of machines. Chiron is also using Sinumerik Operate HMI software for the fi rst time, in order to fully exploit the increased capabilities and enable both simple and highly complex workpieces to be programmed safely and quickly, directly on the machine itself. In addition, the Chiron PROCESSline CAD/CAM system, based upon NX-CAM from Siemens PLM, provides easy offl ine programming and simulation that is precisely tailored to suit the kinematics of the machine.

Two-channel display provides transparency“For us, one of the most important differentiators of the Sinumerik Operate HMI graphical user interface was its ability to display the processing steps on the two NC channels for the main spindle and the rotat-ing or counter-spindle side-by-side during runtime,” explains Dr. Claus Eppler, head of research and development at Chiron. That means the operator is always able to monitor the machining process without the need for any manual switching, and is always able to keep track of the current processing

Components like this can be programmed and manufactured extremely effi ciently with the FZ08 MT and Sinumerik CNCW

.Gey

er


T h e b e n e f i t s o f S i n u m e r i k O p e r a t e a t a g l a n c e

3 Integration of work-step programming and high-level language programming in a single user interface

3 Windows-style display

3 Clear overview provided by tool list

3 Ease of use with animated elements

3 Safety through simulation

3 Easy setup of different kinematic characteristics

steps. The same applies during the creation, pro-gramming and graphical simulation of new work-pieces on the machine, which eliminates input errors and helps avoid the damage these can cause. The programSYNC function allows the synchronization of the channels or program sections to be easily optimized. To fully exploit the benefi ts of a detailed graphical display, the FZ08 MT comes equipped with the new, large 19“ OP 019 touchscreen as standard.

Direct drives for precision and dynamicsThe reliable superstructure of the MT range, which is currently available in two sizes, has been extended to incorporate a full-length transverse linear axis at the bottom. The common primary component of the Simotics L-1FN3 linear motor has a secondary com-ponent mounted on it for the axial movements of the turret and another for the counter-spindle. The water-cooled, wear-free linear motors offer the best possible dynamic performance, ensuring the short-est processing times, high levels of precision and repeat accuracy, and, therefore, the highest possible processing quality. The travel paths are fi nely tuned that the swivel head and turret can be used on both spindles. Meanwhile, the equally compact built-in Simotics T-1FW6 torque motor, which has performed well in other Chiron machines, delivers a high degree of torque and holding torque (for milling operations) on the counter-spindle.

Comprehensive support includedIn addition to the products themselves, the Tuttlingen,Germany-based company has always made good use of the support services and expertise provided by Siemens. For example, Siemens employees were

closely involved in the defi nition and implementa-tion of the new functionality and also in the com-missioning of the fi rst FZ08 MT at the last EMO trade show. Chiron also leaves the switch cabinet con-struction to the specialists from Werk für Kombina-tionstechnik Chemnitz (WKC), which delivers ready-to-use, fully-certified cabinets direct to the com-pany’s production line. The range of services is completed by an intensive training program for the Chiron team on a Chiron machine at the Siemens Technology and Applications Center (TAC) in Erlangen, Germany. p

Productivity in compact form: Chiron has inte-grated complex six-sided turning and milling operations in its new FZ08 MT machining center

infocontact


W. G

eyer

Siem

ens

AG


p Gewinde Ziegler AG / GSA AG, Switzerland

Standardized Interface Promotes Flexibility

Gewinde Ziegler AG / GSA AG uses a heavy-duty Leadwell

LTC-60CXXL turning center equipped with Sinumerik 840D sl CNC

and its standardized, easy-to-use Sinumerik Operate graphical

user interface to produce fl exible, high-quality spindle shafts.

Any manufacturing company relying on the small-series production of customized com-ponents for up to 90 percent of its output

must be highly fl exible if it is to operate economi-cally and meet tight delivery schedules. For Chris-toph Meier, CNC technology manager at Gewinde Ziegler AG / GSA AG in the Swiss town of Horriwil, fl exibility was the main reason he chose the Lead-well LTC-60CXXL turning center, which can process metal bars up to 400 mm in diameter and 6 m in length (or up to 9 m in length if the additional support chuck behind the spindle drive is used). “Instead of waiting fi ve to eight months for an out-side sub-contractor, we are now able to pre-turn even large threaded spindles within a week or two, after which we can temper and grind them. This reduces delivery times to two or three months and is one of our main competitive advantages allowing us to survive even in a high-cost area like Switzer-land,” explains Meier.

Easy programming – thanks to the graphical user interfaceWhen it came to the CNC controller, the CNC tech-nology manager chose the Sinumerik 840D sl based upon positive previous experience with the device. With its multi-channel technology, the control is able to manage the VDI 60 turret with its 12 tool slots, the tailstock with rotating center, the main spindle and the feed drives. As Meier explains, he was impressed by the specifi c benefi ts of this control concept after seeing it used on smaller turning and milling machines. As far as he is concerned, its best feature is the Sinumerik Operate graphical user interface: “The interface displays animated graph-ics for every work step, meaning that even inexpe-rienced staff are able to create sizable NC programs within a very short time.” As Meier notes, it can no longer be taken for granted that the ability to pro-

T e c h n o l o g y T u r n i n g

Tempered roller screw actuators make environmentally friendly, energy-effi cient, and highly accurate feed drives a realityPh

oto

s: G

ewin

de

Zieg

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AG

/GSA

AG


a Sinumerik 828D and will be used for training pur-poses. Like its larger, high-end sibling, this entry-level CNC offers all the required functions for easy and efficient programming through the same Sinumerik Operate programming and user interface. This allows trainees to immediately apply the knowl-edge they have gained here in the company’s pro-duction environment. “That represents another highly practical benefi t of the Sinumerik control sys-tem concept: all of the PLCs on our turning and mill-ing centers have exactly the same programming and operator interface. This means our employees are able to switch between different machines within a

very short period of time, increasing the fl exibility with which we can deploy our staff,” says Reto Ziegler, managing director in Horriwil, summing up the benefi ts of Siemens CNC control systems. p

infocontact


gram in standard DIN ISO language (G-code) will be part of the day-to-day skill set of a metal processing specialist. The concept of graphical, parameterized work steps offers an innovative alternative in this regard, allowing even complex NC programs to be created much quicker and easier right on the machine itself. The Sinumerik Operate user interface even lets users create, edit, and manage detailed tool lists, with all the included tools also represented by icons. “Thanks to the NC programs created directly on the machine using Sinumerik, our staff is able to work reliably from the very fi rst piece,” says Meier.

Economical single-part productionThe animated 3-D simulation of programmed pro-cessing steps, including the tools and clamping devices, also ensures a high degree of process reli-ability. With the costly procurement of high-quality chrome-nickel alloy blanks often taking several months, process reliability plays a crucial role in ensuring continued economic viability. The benefi ts of 3-D simulation are particularly apparent in the manufacture of single part and small-series items, including the heavy-duty long roller screw actuators used in electric injection molding machines and sluice gates, for example. This drive technology is increasingly replacing conventional hydraulic drive technology, with its associated risks to the environ-ment and diffi cult commissioning and adjustment procedures. The roller screw actuators produced by Ziegler are mostly made-to-order and are also used as drive components in machining centers and other specialized machines, in automation, and also in automobiles.

A single user interface for all machinesThe benefi ts of the Sinumerik 840D sl have per-suaded Ziegler to acquire a smaller Leadwell LTC-25ALM turning center, which is equipped with

» Thanks to the NC programs created

directly on the machine using

Sinumerik, our staff is able to work

reliably from the very fi rst piece. «Christoph Meier, CNC Technology Manager, Gewinde Ziegler AG / GSA AG

Colored graphics showing the work area and work-piece and animated simulation of the programmed pro-cesses ensure optimal process reliability in the manufacture of customized threaded spindles


S e r v i c e M a n u f a c t u r i n g E x c e l l e n c e

p Life Cycle Services

Optimizing Plant Availability

Whether in production or during mainte-nance, Life Cycle Services from Siemens helps increase the manufacturing quality

delivered by all types of machinery. The range of services covers the development and retrofi tting of machine tools, machine simulation and the de-livery of solutions for manufacturing IT and virtual production. Users benefi t not only from improved machinery performance and manufacturing quality, but also from the reduced operating costs required for staff and tools. The innovative service concepts also offer signifi cant potential in terms of optimiz-ing the life cycle costs of a machine. Two examples involving the Dutch company Case New Holland (CNH) and S.A.B.C.A. of Belgium help illustrate how the savings potential offered by Life Cycle Services can be achieved.

Retrofi tting a turning machineCNH is a leading manufacturer of agricultural and construction machinery, with over 40 production sites around the world. The company’s plant in Zedelgem, Belgium had a Boehringer inclined bed turning machine from the 1990s that was respon-

Life Cycle Services is a comprehensive offering from Sinumerik

Manufacturing Excellence that allows users to increase both

plant availability and the productivity of their systems, while

simultaneously reducing costs over the longer term.

sible for 25 individual work steps and was in urgent need of a retrofi t due to dwindling productivity after years of continuous use. When implementing this modernization project, specialists had to consider a number of requirements:

3 Some replacement parts for the machine were extremely diffi cult and expensive to obtain.

3 The reliability of the machine needed to be improved, which meant fi tting components that would ensure the highest levels of plant availability.

3 Suitable software needed to be installed to monitor the data produced by the machine and establish its effi ciency.

3 The error-prone control cabinet was to be simplifi ed.

3 The CNC machine had to provide a high degree of safety.

The solution was to replace the existing CNC system with Sinumerik 840D and Safety Integrated, which has all the required safety features already fully

Overall equipmenteffectiveness (OEE)


integrated. This control system uses machine data acquisition (MDA) software to monitor production data, allowing the production department to easily determine the overall equipment effectiveness (OEE). Additionally, new Simodrive 611 drives allow the control cabinet to be simplifi ed, and the Simotics S-1FK7 servomotors are more robust and run more effi ciently.

In summary, after retrofi tting with Sinumerik 840D, the machine is now far easier to maintain, obtaining replacement parts is no longer a problem and machine downtime has been almost completely eliminated.

Optimizing production fl owBelgian aerospace company S.A.B.C.A. has many years’ experience in processing highly complex com-ponents. To continually deliver the high levels of quality demanded by customers in this high-tech sector, S.A.B.C.A. places great emphasis on adapting its machinery to meet the very latest technological requirements. When an audit revealed that the com-pany’s production fl ow could be further improved, along with its productivity and profi ts, the company turned to Siemens to fi nd out how.

To S.A.B.C.A., it was important to use software to monitor production data and, therefore, the effi -ciency of the machine. The production fl ow was then to be improved by carrying out a structural analysis of the collected data. S.A.B.C.A. also wanted detailed insight into the problems that might occur during the production process, in particular during periods of downtime. In the event of a system change, data were to be measured directly and accurately.

Two measures were crucial in satisfying these re-quirements: Siemens fi rst installed its MCIS (motion control information system) software, which auto-matically extracts data, error messages, etc., from the machine. This allows the performance of the entire production system to be measured based on objective data. MDA software was then installed on all the machinery in the production fl ow, allowing operators to record OEE data at a glance. Messages concerning critical machine statuses are nowge nerated automatically and no longer need to be recorded by hand.

S.A.B.C.A. was extremely pleased with the results, as the machine’s OEE values for availability, perfor-mance and quality all showed signifi cant improve-ment after the solution was implemented. In addi-tion, the basic data used in the calculations were more precise and the evaluation of objective data much simpler. The company now has a continuous and complete overview of its production fl ow that is always up-to-date. The machine is also easier to maintain thanks to the early identi-fi cation of structural problems based upon analysis of the data. p

info

contact

www.siemens.com/sinumerik/manufacturingexcellencewww.siemens.com/automation/service&[email protected]


T e c h n o l o g y P a r t n e r s h i p w i t h S i e m e n s

p Sinumerik Solution Partner

Process Monitoring for the Sinumerik 828D

Increased automation has led to corresponding increases in both process and product diversity, which in turn place even higher demands on

those responsible for managing and operating the machines in question. That is why self-optimizing, self-adjusting process monitoring systems, designed to actively support the user in his or her tasks, are becoming ever more important. Sinumerik Solution Partner MCU GmbH & Co. KG has developed its Toolinspect module specifi cally to monitor tools fi tted on CNC machines. The device, which uses integrated software to help select the most appro-priate monitoring strategy, records the required data via a Sinumerik Profi net or Profi bus DP inter-face. After the tool manufacturer has set the re-quired parameters once, no further adjustments are necessary.

Test passed with fl ying colorsToolinspect was installed on an Emco VT250 vertical lathe fi tted with a compact Sinumerik 828D CNC. The device turned in an impressive performance, characterized by high levels of productivity and repeatability and excellent usability. Together with its partners, Emco and Siemens, MCU succeeded in implementing a cost-effective and fully functional integrated process monitoring system on a compact control system. After Toolinspect had been installed, the VT250 was used to process steel workpieces. Using the standard setup, the system was able to safely monitor turning, milling, boring and thread-ing processes via the tools in the turret. Because the system is designed to be operated using only three function keys, a short training session was suffi cient to bring the operator up to speed. None of the para-meters or thresholds needed to be changed, because the system carries out its own optimization while producing the fi rst workpieces after a trial run.

Many advantagesToolinspect is characterized by its ability to recog-nize process anomalies and its user-friendly design. The module is extremely easy to operate and re-quires only very small changes in the CNC program. It automatically adapts to different operating con-ditions, such as wear and tear or changes in tem-perature, and, on top of it all, it is also extremely easy to install. p

In collaboration with Emco and Siemens, MCU has developed the

fi rst tool-monitoring system suitable for use on a compact machine

fi tted with the Sinumerik 828D.

Toolinspect monitors tools on

CNC machines

MC

U G

mb

H &

Co

. KG

info

contact

www.siemens.com/automation/solutionpartnerwww.emco-world.comwww.mcu-gmbh.deyalcin.delioglan@siemens.com


D i a l o g u e

Imprint: motion world 1-2012

Siem

ens

AG

mowo appmotion world for iPadNow in the app store: the 2nd issue

Right on time for METAV 2012, you can download the second issue of the English edition of motion world for your iPad. All you need to do is install the app and you can access previous issues as well as the latest issue. Take our magazine for CNC automation wher-ever you go – on the road, to the offi ce or even at home. The iPad edition offers content from the print edition including exclusive information with audio-visual and interactive features. Videos, animated graphics, photo slideshows and other content pro-vide you with a rich environment to learn more about the latest trends and technologies in the world of Sinumerik.

Download the second issue of motion world to your iPad and have more fun while reading – free of charge!

More information can be found online:

www.siemens.com/mowo-app

PublisherSiemens Aktiengesellschaft, Gleiwitzer Str. 555, 90475 Nuremberg, Germany

Division Drive TechnologiesCEO Ralf-Michael Franke

Editorial Responsibility in Accordance with the German Press LawArno Hoier

Responsible for Technical ContentsBernd Heuchemer

ConceptChristian Leifels

Editorial Committee ChairElke Pilhöfer

Publishing HousePublicis PublishingPostfach 32 40, 91050 Erlangen, GermanyTel.: +49 (0) 91 31 / 91 92-5 01Fax: +49 (0) 91 31 / 91 92-5 [email protected] staff: Dr. Beate Bellinghausen, Gabriele StadlbauerLayout: Nadine SöllnerDTP: Mario WillmsCopy editor: Sabine Zingelmann

Job number: 002800 37821

Cover photo: W. Geyer

Printed by: Wünsch, Neumarkt, Germany

Circulation: 8,500

© 2012 by Siemens Aktiengesellschaft Munich and Berlin. All rights reserved by the publisher. This edition was printed on environmentallyfriendly chlorine-free paper.

The following products are registered trademarks of Siemens AG:ShopMill, ShopTurn, SIMATIC, SIMODRIVE, SIMOTICS, SINUMERIK, SINAMICS, SINUMERIK HMI, SINUMERIK MDynamics, SINUMERIK Operate, SINUMERIK Safety Integrated

If trademarks, technical solutions, or similar are not included in the list, it does not imply that they are not protected.

The information provided in this magazine contains merely general descriptions or characteristics of performance which in actual case of use do not always apply as described or which may change as a result of further development of the products. An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract.

ISSN 1611-1028 (Print)

IWI: TMOD

Order number: E20001-MC121-B100-X-7600

Printed in Germany

motion world in the app store

Scan the QR code with your iPad to download the motion world app from iTunes.

This handy CNC G-Code Compatibility app helps you quickly fi nd com patible codes for Siemens and ISO G-codes. In addition, formatting examples are provided, making easy-to-use Sinumerik CNCs even easier. A Glossary of Terms function is your easy reference guide to CNC abbreviations. Looking for service or support is right at your fi ngertips with a web-link tool, and CNC social media feeds open the doors to a vast online user community.

Download the G-Code Compatibility app for iPhone and iPad for free.

www.siemens.com/cnc4you-app

G-Code Compatibility app

Scan the QR code with your iPhone or iPad to download the app from iTunes.

New appG-Code Compatibility app

Siem

ens

AG

Whether in the automotive and aerospace industry, in the fields of job order produc-tion, tool and mold construction or in the energy and medical engineering sectors – SINUMERIK® is the ideal CNC equipment for machine tools.As integrated system platform, it meets your sector’s specific requirements on the

basis of elaborate and innovative func-tions, integrated components and supple-mentary services. You will benefit from optimum machining results with perfect surfaces, precision, quality and speed – coupled with optimum usability and an integrated process chain. The result: In-creased production productivity.

siemens.com / sinumerik

Increase productivity using SINUMERIKThe innovative CNC platform to meet all requirements

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